Metallurgy = fail, fail, fail, and fail

ARGH!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Crying for fail here!!!!Or I should say,"Rage!"!!!
What the Hard that converting Lv4 stone to lv5 89% failed 5 times in a row. If that happens to me once, it is ok, it happens to me almost 3 times a day!!!!
What the Hard is happening after the maintenance and all the metallurgy i did was failed failed and failed for past few days!!!!:@

A small bug i discover
>>Whenever you gonna try unbound lv4 and bound lv4 stone to metallurgy it into lv5 stone. Most of the time it is failed!!!!!And it is written there success rate 89%!!!

*Wont be peace for me until some1 proves me he/she got +12 4 times in a row without failing!!!!!!*PAK!!!